There are also new pumps out now with variable powersteering. I am currently setting up one in my 46 Ford Coupe. Apparently it senses when you need the power and only delivers then. So when you trying to park or something that involves turning it gives power but while driving down the highway it turns the pump off. Not sure how well it works yet as I am still doing the wiring on the motor. basically what I have setup is the controller out of an 1996 Lincoln Mark VIII and a powersteering late model ford variable flow power steering pump. Ford has been using this technology since the early 90's on their full size cars, so its been around a while. If your interested I can keep you posted when I get this on the road.